Jan, pa9qv's "Double Dutch" Grabber displays a much longer time history - so the temporal resolution isn't as fine. I've highlighted my signals (DFCW and Hell) with a red box...

Colin, g6avk, reported seeing my signals on the KnightsQRSS list - Colin said "I managed to read the inverted FSKCW here ..... It had me guessing for a while though Hi!"

Finally, Joachim, pa1gsj was kind enough to comment on the blog that he had seen my signals "the better part of the day over here in JO22da".

Joachim also made the eminently sensible suggestion that I might run the Si570 DDS oscillator at a harmonic of the desired frequency and divide down to get the three-and-a-bit Meg signal I need. That might well be the answer - I need to make a new version of the controller board (to get control lines for the band-pass filter and the yet to be constructed low-pass), so adding a divider stage after the DDS plug-in will be easy.

Bill w4hbk has stitched together a night's worth of screens from Johan, on5ex's grabber - you can see how my signals start breaking into Belgium after breakfast at a civilised hour. Fellow WARC member Mike, g4vss, ten miles down the road, obviously has his three Weetabix a little earlier!

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About Me

Engineer, who grew up in the age when hobbyists used a soldering iron (rather than a mouse) to mess with computers. Came late in life to amateur radio, where he operates the station m0xpd, conducts pointless experiments, and plays with words and ideas.